eastern time and cbs news will air portions of it live, including president obama's remarks. today the white house warned the senate not to vote for new economic sanctions on iran fearing more sanctions could unravel the nuclear deal the administration worked out last month. iran agreed to freeze its uranium enrichment for six months in return for an easing of sanctions but there are opponents to that idea in the senate and elsewhere. elizabeth palmer is in tehran for us. liz? >> reporter: iran's new reformist government defied hard-liners at home and pushed hard for this geneva agreement against a lot of domestic resistance and now they're afraid that the u.s. senate is going to introduce these new sanctions. majid ravanchi was one of the negotiators and he told that iran was counting on the u.s. and iran to adhere to the geneva agreement to try and repair what has been more than three decades of really toxic relations. >> we do not trust what the american government does and it is natural the same feeling is there in america. what is important for the time being is we are e